Improvement in grain-cleaner



J. E. WHEAT.

Grain Winnower.

Patented Jan. 26, 1869.

Infant 7-.

PLPETERS. PHOTO-UTHOGRAPHER. WA$HINGTON. D C

JA MES E. WHEAT, OF ROCHESTER, NEW YORKfi Letters Patent No. 86,194, dated January 26, 1869.

IMPROVED-TENT IN GRAIN-CLEANER.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, J AMES E. WHEAT, of the city ofRochester,in the State of New York, have invented a new and useful Grain-Cleaner; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, making part of this specification, in which Figure 1 is a vertical longitudinal section.

Figure 2 is an elevation of the lever a showing its connection to the sieve-bar n and screw-cam c.

Figure 3 is a top view of the bell-crank (7, showing its connection to the screw-cam c, and a portion ofthe screen-connecting rods :v and h.

The nature of my invention may be better understood -from the drawings and specifications.

To enable others skilled in the art to make and use my invention, I will describe its construction and operation.

The frame o my grain-cleaner is made and enclosed in any of the usual forms.

The combined screens a and separate screen 3 are suspended to the frame by any desired means, to give them a longitudinal motion.

On the end of the fan-shaft 7) (and inside of the frame) I fasten a screw-cam, c, figs. 2 and 3. This cam operates a bell-crank, (1, figs. 1 and 3.

The bell-crank (I is pivoted on a journal, e, figs. 1 and 3, fastened on the inside of the frame.

The longitudinalarm of the bell-crank has a slot in the end, which receives the screw-cam c, fig. 3.

To the transverse arm I attach two connecting-rods, hand :11. The one, h, is connected to and operates the combined screens a longitudinally. The other, an, operates the single screen y in the same direction.

Under the screen ,7, I place a drawer, I, (having a partition, w,) that forms, at the same time, a tail-board.

and screen-box.

In the bottom of the upper division an opening, 0, is formed, to allow the headings that fall in to be taken out without moving the drawer. This opening has a slide-cover.

The screenings fall from the screen into the lower division of the drawer F. By this arrangement the screenings pass through, and the headings pass over the tail of the screen, into the drawer F, and are con fined, and not allowed to scatter over the granary.

To the lower end of the inclined wheat-con veyer g I attach, by hinges, a retaining-board, J, which, when in a downward position, shown in full lines, fig. 1, allows the grain to pass over into a receiving-vessel, H, and when'raised up, as shown in dotted lines, retains the grain while the vessel is being emptied.

Under the hopper G, I place a grass-seed screen, K, which is sustained in front by the bar 21, figs. 1 and 2, and in rear by the pivoted rods L, fig. 1.

To one end of the bar 11, I pivot a lever, a, shown .in full lines, 2, and dotted lines, fi 1, which is sustained and vibrates on a fulcrum, :c.

has dM /y WW7 The lower end of the lever a is pivoted to an arm, (1, of bell-crank (I. This cam gives motion to the lever a, when the fan-shaft is in motion, and operates the grass-seed screen K transversely to the machine.

Under the grass-seed screen K, and between it and the fan WV, I place a drawer, S, which receives the grass-seed as it passes through the screen K.

On the top of the lower of the combined screens a, I place a metal plate, or a board, p, which closes that part on which the grain falls from the upper screen, so that the oats in wheat will be changed from a perpendicular to a horizontal position, before getting on the screen, thereby passing over, and not through with the wheat.

The plate 1) is fastened to the screen by hooks projecting through the meshes, and is movable to any point where the grain drops from the upper screen.

The operation" of this grain-cleaner is as follows:

The uncleaned grain being put in the hopper G, and the mill set in motion, the grain falls on the screen K, and, by the transverse motion of the screen, is retained sufficiently long to allow the grass-seed to pass through into the drawer S, the transverse motion of this screen being better than the ordinary longitudinal, for this purpose.

The remainder of the grain passes through the upper of the combined screens on the plate 1), the headings passing over the rear end.

The oats fallim on the late are caused to chan e their position, and are carried over the tail, and the other grain passes through the screen.

This plate does away with an extra screen, used in ordinary machines for the same purpose.

The grain passes thence into the receiving-vessel, and when it is full, the retaining-board is turned up while the vessel is being emptied, and retains the grain until it is put into its place to receive the grain.

The combined screens a and 3 may be driven by one connecting-rod.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The fan-shaft I), screw-cam c, lever a, in coincination with the grass-screen K, all acting conjointly, as and for the purpose set forth.

2. The fan-shaft b, screw-cam c, bell-crank (1, connecting-rods x and h, in combination with the combined screens a and single screen y, as and for the purpose sctforth.

3. The retaining-hoard J, in combination with the inclined grain-conveyer g, as hereir shown, and for the purpose set forth.

4. The drawer F, when used as a combined tail-board and screen-box in grain-cleaners, as herein shown and described.

JAMES E. WHEAT. Witnesses:

J.\s. L. GAGE, WM. S. Lone- -nonen. 

